MelbourneDeveloper

//Programming is too easy. What if we wrote functions like this?
//Instead of just calling the function, we create types to bundle
//up the arguments and then pass the type to the function that accepts
//a generic type.
//
//This is the essence of the Bloc pattern.

class AdditionArguments {
  final num a;
  final num b;

MelbourneDeveloper

//Programming is too easy. What if we wrote functions like this?
//Instead of just calling the function, we create types to bundle
//up the arguments and then pass the type to the function that accepts
//a generic type.
//
//This is the essence of the Bloc pattern.

sealed class Event {}

class AdditionArguments extends Event {

MelbourneDeveloper

import 'package:flutter/material.dart';

void main() => runApp(
      MaterialApp(
        debugShowCheckedModeBanner: false,
        home: Scaffold(
          body: Center(
            child: FutureBuilder(
              future: Future<String>.delayed(
                  const Duration(seconds: 3), () => 'Hello World!'),

MelbourneDeveloper

(int a, int b) returnMulti() => (1, 2);

void main() {
  var numbers = returnMulti();
  var dayNumber = switch (numbers) {
    (int a, int b) when a == 1 && b == 2 => 'One and Two',
    (_, _) => 'Default'
  };
  print(dayNumber);
}

MelbourneDeveloper

import 'dart:math';

sealed class Shape {}

class Square extends Shape {
  Square(this.length, this.width);
  final double length;
  final double width;
}

MelbourneDeveloper

abstract class Animal {
  String get name;
}

class Dog extends Animal {
  @override
  String get name => 'Spot';
}

class Cat extends Animal {

MelbourneDeveloper

void main() {
  var dayOfWeek = 'Monday';
  var dayNumber = switch (dayOfWeek) {
    'Monday' => 1,
    'Tuesday' => 2,
    'Wednesday' => 3,
    'Thursday' => 4,
    'Friday' => 5,
    'Saturday' => 6,
    'Sunday' => 7,

MelbourneDeveloper

import 'package:flutter/material.dart';

void main() => runApp(
      MaterialApp(
        debugShowCheckedModeBanner: false,
        home: Scaffold(
          body: Center(
            child: FutureBuilder(
              future: Future<String>.delayed(
                  const Duration(seconds: 3), () => 'Hello World!'),

MelbourneDeveloper

import 'package:flutter/material.dart';

final colors = [
  const Color.fromARGB(255, 255, 0, 0),
  const Color.fromARGB(255, 0, 255, 0),
  const Color.fromARGB(255, 0, 0, 255),
];

void main() {
  runApp(

MelbourneDeveloper

import 'package:flutter/material.dart';

void main() => runApp(
      MaterialApp(
        theme: ThemeData(
          useMaterial3: true,
          colorScheme: ColorScheme.fromSeed(seedColor: Colors.red)
              .copyWith(surface: Colors.pink),
          cardTheme: CardTheme(
            shape: RoundedRectangleBorder(